Almost half of sandwiches consumed last year were bought at restaurants rather than made at home, reports AdAge.

Sandwiches are shifting out of the category of boring, DIY sad desk lunch and moving up as a healthy and convenient meal option, according to data released in the most recent Sandwich Consumer Trend Report. Thanks to Millennials’ search for fast and somewhat healthy lunch choices, the sandwich industry has expanded to a value of over $27 billion.

A surprising 49% of sandwiches consumed last year were purchased rather than made at home, which is a 5% increase from 2011. This market expansion is allowing chains like Subway and McDonald’s to ride the sandwich trend by marketing healthy sandwich and wrap options, like McDonald’s new McWrap. Even lesser-known sandwich spots like Firehouse Subs has experienced a 33.5% sales growth this year.

Despite this sizable growth in sandwich purchasing, sandwich consumption hasn’t risen overall. Clearly, Millennials just suck at making their own sandwiches.

Mcdonald’s new McWrap is marketed as healthy and convenient. (McDonald’s)